沖(chong)孔(kong)(kong)(kong)封(feng)頭(tou)(tou)(tou)：由一(yi)個(ge)(ge)或多個(ge)(ge)孔(kong)(kong)(kong)沖(chong)壓成形(xing)的封(feng)頭(tou)(tou)(tou)。沖(chong)孔(kong)(kong)(kong)封(feng)頭(tou)(tou)(tou)也有橢圓形(xing)沖(chong)孔(kong)(kong)(kong)封(feng)頭(tou)(tou)(tou)、平底(di)沖(chong)孔(kong)(kong)(kong)封(feng)頭(tou)(tou)(tou)、蝶形(xing)沖(chong)孔(kong)(kong)(kong)封(feng)頭(tou)(tou)(tou)、無(wu)直邊沖(chong)孔(kong)(kong)(kong)封(feng)頭(tou)(tou)(tou)等！

一般沖孔封頭多用(yong)(yong)于(yu)各種設備過濾使用(yong)(yong)。而孔的大小(xiao)，距(ju)離均可按要(yao)求(qiu)來(lai)定做。